Delrin is DuPont’s brand name for POM homopolymer, while generic “acetal” typically refers to POM copolymer. Both are polyoxymethylene engineering plastics used in precision mechanical applications.
POM Homopolymer (Delrin) Properties
POM homopolymer offers tensile strength of 70 MPa (highest of all acetal grades), flexural modulus of 2,800 MPa, elongation at break of 40% (most ductile), and excellent fatigue resistance for cyclic loading applications.
POM Copolymer Properties
POM copolymer provides better chemical resistance against acids and hot water, excellent hot stamping capability for decorated parts, improved stability with less centerline porosity, and typically lower cost than homopolymer.
Selection Guide
Choose homopolymer (Delrin type) for precision gears with high loads, snap-fit designs, and applications requiring highest strength. Choose copolymer for chemical exposure environments, decorated parts, and cost-sensitive applications. For high-strength applications, consider our PA66-CF30.
Source POM Materials
As a specialized source manufacturer, we supply both POM homopolymer and copolymer in rod and sheet forms. 문의하기 for technical support and pricing.
자주 묻는 질문
How do you know whether HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application? fits a part?
HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application? fits a part when its load capacity, temperature range, moisture exposure, wear behavior, and processing method match the real service conditions.
What properties should be checked for HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application??
강도, 강성, 내충격성, 내열성, 수분 흡수율, 치수 안정성, 마찰, 마모 및 화학적 호환성을 확인하십시오.
What is the biggest selection risk for HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application??
가장 큰 위험은 실제 환경, 가공 방법, 부품 형상 및 장기 사용 등을 고려하지 않고 데이터시트에 기재된 수치만 보고 선택하는 것입니다.
When should HDPE vs UHMW-PE — Which Polyethylene Is Right for Your Application? be tested before production?
부품이 하중, 열, 화학 물질, 습기, 엄격한 공차, 규제 요건 또는 새로운 작동 환경에 노출될 경우 시험을 실시하는 것이 좋습니다.
